Piston-cylinder.



80 MODEL.

PATENTED DEC. 1, 1903.

L. O. KISER.

PISTON CYLINDER.

APPLICATION FILED APR. 16, 1903.

Patented December 1, 1903.

PATENT OFFICE.

LEWIS C. KISER, OF DECATUR, ILLINOIS.

PISTON-CYLINDER.

SPECIFICATION forming part of Letters Patent No. 745,729, dated December1, 1903.

Application filed April 16, 1903- .To all whom it may concern:

Be it known that I, LEWIS C. KISER, a citizen of the United States,residing at Decatur, in the county of Macon and State of Illinois, haveinvented certain new and useful Improvements in Piston-Cylinders, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

This invention relates to piston-cylinders, and has for its object theprovision of a cylinder of improved construction, as will be apparentfrom the detailed description hereinafter and the appended claims.

An embodiment of the invention is illustrated in the accompanyingdrawings, forming part hereof, wherein Figure 1 is a longitudinalsectional view through the cylinder, the piston being shown inelevation. Fig. 2 is an end elevation, and Fig. 3 is a cross-sectionalview on the line a: a; of Fig. 1. 7

Referring more particularly to the drawings, wherein like referencecharacters designate corresponding parts in the several views, Adesignates a cylinder which has a continuous smooth bore or interiorsurface extending from end to end thereof, and B B are heads for theopen ends of said cylinder,being bolted thereto in the usual manner,with .an interposed packing b, by bolts Z).

In each end of the cylinderan annular cham her 0 is formed, opening atthe ends of said cylinder and having communication with the interior ofthe cylinder through the medium of the hollow or sunken portions 0 ofthe heads 13 B, said sunken portions forming a restricted annularpassage between the heads and the ends of the cylinder, connecting theannular chambers C with the interior of the cylinder.

Each chamber 0 opens to a pair of radiallydisposed openings (Z in thecylinder, said openings in turn passing through the outer wall' of thecylinder and receiving the ends of pipes I) and D, one an inlet orsupply pipe and the other an exhaust or discharge pipe. The supply-pipesjust referred to are provided with valve-seats d and ball-valves darranged to be unseated in an inward direction, while thedischarge-pipes have similar but oppositely-disposed seats (Z and valvesSerial No. 152,911. (No model.)

(1 arranged to unseat in an outward direction for obvious reasons. Thevalve-seats are preferably removably connected to their respective pipesand carry wire cages d to confine the valves and prevent excessive playthereof.

It is to be understood that slight changes in the construction. andarrangement of the several parts of the cylinder herein disclosed may bemade without departing from the spirit of the invention.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is-

1. A cylinder of the character described having an annular chamber inthe end thereof opening at said end, the head ofsaid cylinder beingformed with a sunken portion affording communication between the annularchamber and the interior of the cylnder, said cylinder also having aradial opening leading from the exterior to the annular chamber.

2. A cylinder of the character described having an annular chamber inthe end thereof opening at said end, the head of said cylinder beingformed with a sunken portion affording communication between the annularchamber and the interior of the cylinder, said cylinder also having anopening leading from the exterior to the annular chamber.

3. A cylinder of the character described having a chamber in the endthereof opening at said end, the head of said cylinder being formed witha sunken portion affording communication between the chamber and theinterior of the cylinder, said cylinder also having a radial openingleading from the exterior to the chamber.

4:. A cylinder of the character described having a chamber in the endthereof opening at said end, the head of said cylinder being formed witha sunken portion affording communication between the chamber and theinterior of the cylinder, said cylinder also having an opening leadingfrom the exterior to the chamber.

5. A cylinder of the character described having an annular chamber inthe end thereof opening at said end, the head of said cylinder beingformed with a sunken portion affording communication between the annularchamber and the interior of the cylinder, and valved inlet and exhaustpipes leading from the exterior to the annular chamber.

6. A cylinder of the character described having a chamber in the endthereof opening at said end, the head of said cylinder being formed witha sunken portion affording communication between the chamber and the interior of the cylinder, and valved inlet and exhaust pipes leading fromthe exterior to the chamber.

7. A cylinder of the character described having a chamber in each endthereof opening' at said ends, the heads of said cylinder being formedwith sunken portions affording I5 communications between the chambersand the interior of the cylinder, and inlet and exhaust pipes leadingfrom the exterior to each of said chambers.

In testimony whereof I aflix my signature 20 in presence of twoWitnesses.

LEWIS O. KISER.

\Vitnesses B. M. DENNIS, F. R. Goonn.

